This paper shows the results of an experimental survey carried out using an advanced full scale interactive driving simulator with the aim of: evaluating design inconsistencies on existing multi-lane freeway road in mountainous area; define predicting models for operating speed (V85) and mean speed with respect to combined horizontal and vertical curvature from the date collected. A sample freeway section was selected from a real road in yunnan mountainous area as a test course and was modeled graphically and implemented in the driving simulator. 30 drivers were selected as test drivers who performed the simulation driving on the course. Dynamic data were collected from the simulation system and the analysis of data highlighted inconsistencies of the sample road using a well known Safety Criteria Model. Combined models predicting operation speed and mean speed versus grade and CCR were aggressed from test date and the speed profile from which shows a good agreement with test one. For the covering abstract see ITRD E138091. This paper is available from http://www.ictct.org/workshops/07-Beijing/64Jian%20Xiong231242.pdf.
Samenvatting